Using state-of-the-art Digital Hybrid Wireless technology, this Lectrosonics DSQD 4-Channel Digital Wireless Receiver with Dante Kit from B&H adds four HHu handheld transmitters and four HHC cardioid electret capsules to meet the needs of audio professionals and vocalists.
The Lectrosonics DSQD packs four wideband receivers, with analog XLR and Dante digital outputs, into a compact, half-rack chassis that fits into a cart or even a bag. Part of the D-Squared Series and powered by 4th generation Lectrosonics digital technology, the unit delivers the company's high-standards of reliability, flexibility, and studio-quality audio to professionals in TV, broadcast, and film, as well as houses of worship, theater, and concert venues.
Audio fidelity is outstanding with a flat 20 Hz to 20 kHz frequency response, wide dynamic range, 24-bit/48 kHz digital audio encoding, digital transmission, and ultra-low latency. The DSQD tunes continuously across the extended UHF band from 470 to 608 MHz. It features tracking filters that stay centered on the selected frequency, ensuring excellent RF performance even in difficult environments. Three selectable diversity modes can be employed, depending on the needs of the application. The DSQD is optimized for the DBu bodypack and DHu handheld digital transmitters, but is also backward-compatible with any Digital Hybrid wireless transmitter. Three levels of AES 256-CTR encryption are available when using digital transmitters.
The streamlined menu structure makes the unit easy to use and quick to set up with auto-scan and two-way IR sync. A large, high-resolution backlit LCD and large membrane switches provide an intuitive interface that is highly visible in daylight or dimly lit conditions. The DSQD can be programmed and monitored over its USB or Ethernet connections using the Wireless Designer software for Mac/Windows (free download available separately). The software allows for offline full-system frequency coordination, greatly reducing setup time.
Antenna ports on the rear panel accept input from remote antennas. The antenna "loop-thru" cascade outputs use an internal multi-coupler, enabling you to run multiple receivers from a single pair of antennas without the need for additional components. The DSQD includes half the rack hardware needed to mount two units together, yielding 8 channels in 1RU. If you're rackmounting only a single DSQD, the RMPM2T-1 mounting kit (available separately) is required.
- 1.4 ms latency, transmitter input to analog output, using a digital transmitter
- <2.9 ms latency, transmitter input to analog output, using any Digital Hybrid Wireless transmitter
- THD+N of 0.05% at 1 kHz, -10 dBFS
- 108 dB of dynamic range
Ratio: Two receiver channels can be paired as one receiver. Both channels are set on the same frequency. One receiver in the pair is fixed on Antenna A, while the other receiver is fixed on Antenna B. The DSQD automatically uses whichever receiver’s RF signal quality is better.
Frequency: Two receiver channels are paired as one receiver. Each channel is set to a different frequency. The DSQD automatically uses whichever receiver’s RF signal quality is better.
Shared: There are an unlimited number of shared keys available. Once generated by the DSQD and transferred to the transmitter, the encryption key is available to be shared (synced) by the transmitter with other transmitters/receivers via the IR port.
Universal: This is the most convenient encryption option available. All encryption-capable Lectrosonics transmitters and receivers contain the Universal Key. The key does not have to be generated by the DSQD. Simply set a Lectrosonics encryption-capable transmitter and the DSQD to Universal, and the encryption is in place.
- Digital talkback capability when used with talkback-enabled transmitters
- Stereo headphone jack with retractable headphone volume knob for audio monitoring per channel
- Antenna bias power can be engaged in the menu, and front-panel LEDs show the status
- Serial input and output ports for connecting receivers to each other for data sharing
- Adding a pair of ALP690 active antennas increases the range of your system and offers increased protection against interference
The Lectrosonics DHu is a digital handheld wireless microphone transmitter compatible with D-Squared Series receivers. Powered by 4th generation Lectrosonics digital technology, it includes high-efficiency circuitry specially developed for extended operating time on two AA batteries, and offers RF power selections at 25 and 50mW. The pure digital architecture enables AES 256-CTR encryption for applications requiring high-level security.
The DHu features an interchangeable capsule design compatible with the Lectrosonics HHC cardioid condenser capsule, as well as capsules from manufacturers such as EV, Shure, Heil Sound, Earthworks, Telefunken, and others. Condenser or dynamic mic capsules can be used, offering a versatile solution for a variety of wireless microphone applications including live performance, broadcast, houses of worship, and AV rental.
The unit incorporates advanced features optimized for speech and vocal reinforcement. It employs high-quality components in the preamp, a broad range of input-gain adjustment, and DSP-controlled analog limiting to deliver studio-quality audio at a 24-bit/48 kHz resolution. An adjustable low-frequency roll-off is available to control the proximity effect when using the mic close to the source.
A programmable button on the side of the transmitter can be configured as a mute/cough switch, a power switch, or a talkback switch for communication with the production crew. The DHu's rugged housing is milled out of aluminum alloy and powder coated for lasting performance.
- Lectrosonics offers two types of cardioid/condenser capsules. The HHC is the standard capsule and the HHVMC is the Variable Mic Capsule, which includes adjustments for bass, midrange, and treble.
- The DHu accepts thread-on capsules from other manufacturers using a 1.2" opening and 28-thread pitch.
- The input gain is adjustable over a 45 dB range in 1 dB steps, allowing gain settings to accurately match the user’s voice and the varying sensitivity of different microphone capsules.
- The transmitter employs a digitally controlled analog audio limiter prior to the A/D converter. The limiter has a range greater than 30 dB for excellent overload protection. A dual-release envelope makes the limiter acoustically transparent while maintaining low distortion.
- The DHu tunes in coarse or fine steps across the entire 138 MHz UHF frequency range, from 470 to 608 MHz.
- Standard: This is the highest level of security.
- Shared: The encryption key can be shared by the transmitter with other transmitters/receivers via the IR port.
- Universal: This is the most convenient encryption option.
- Mute: Operates as a toggle. One press and release mutes the audio, and the next restores the audio.
- Cough: A momentary audio mute when the button is held in. Audio is restored as soon as the button is released.
- Power: Operates in the same manner as the power button membrane switch on the control panel.
- (None): Bypasses the switch.
- The lower housing sleeve slides down for access to the control panel. Coarse threads hold the sleeve firmly in place during use but allow easy access to the control panel for setup and adjustment.
- Setup and adjustments are enabled through a backlit LCD, membrane switches, and an intuitive menu structure.
- The IR Sync port lets you transfer the frequency settings from the receiver to the transmitter for quick setup.
- LEDs provide red/green indications of the audio level from -20 dB to the onset of limiting, enabling accurate input-gain adjustment.
- The LectroRM app (available separately) is a mobile application that lets you control the DHu, allowing you to change the audio level, frequency, and lock mode wirelessly. The app is available for iOS and Android operating systems.
- Operates for up to 5 hours on two AA batteries.
- A unique helical antenna allows the transmitter to be held in any position, since the user’s hands have little or no effect on the RF output power.
- The battery contacts hold the batteries firmly to prevent audible “rattle” when the transmitter is shaken.
- Settings can be locked to prevent inadvertent changes from being made. When the unit is locked, the programmable switch continues to operate.
- Firmware updates are made via the USB port on the side panel. The procedure is simple, using a menu item on the transmitter and a standard micro-USB cable.
- Power Available: 5V, 25mA max.
- Input Impedance: 1000 Ohms.
The Lectrosonics HHC Cardioid Capsule is the modular screw-on capsule for the Lectrosonics HHT transmitter.
